CVE-2022-50713
Unknown Unknown - Not Provided

Memory Leak in Linux Kernel visconti PLL Registration

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: clk: visconti: Fix memory leak in visconti_register_pll() @pll->rate_table has allocated memory by kmemdup(), if clk_hw_register() fails, it should be freed, otherwise it will cause memory leak issue, this patch fixes it.

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Meta Information

Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-07-06
AI Q&A
2025-12-24
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50713
EUVD
EUVD-2022-55776

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a memory leak in the Linux kernel's visconti clock driver. Specifically, when the function visconti_register_pll() allocates memory for pll->rate_table using kmemdup(), if the subsequent clk_hw_register() call fails, the allocated memory is not freed, causing a memory leak. The patch fixes this by ensuring the allocated memory is properly freed on failure.

Impact Analysis

The memory leak can lead to increased memory usage over time, potentially degrading system performance or causing resource exhaustion if the failure condition occurs repeatedly. This could affect system stability and reliability.

Mitigation Strategies

To mitigate this vulnerability, update your Linux kernel to a version that includes the fix for the memory leak in visconti_register_pll(). This patch ensures that allocated memory by kmemdup() is properly freed if clk_hw_register() fails, preventing the memory leak.

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